Add proxy pallet

Cargo.toml

@@ -2,8 +2,8 @@
 members = [
     "integration-tests",
     "node",
-    "pallets/subtensor",
     "pallets/commitments",
+    "pallets/subtensor",
     "runtime",
 ]
 resolver = "2"

runtime/Cargo.toml

@@ -60,6 +60,9 @@ pallet-membership = { version = "4.0.0-dev", default-features = false, git = "ht
 # Multisig
 pallet-multisig = { version = "4.0.0-dev", default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v1.0.0" }
 
+# Proxy Pallet
+pallet-proxy = { version = "4.0.0-dev", default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v1.0.0" }
+
 # Scheduler pallet
 pallet-scheduler = { version = "4.0.0-dev", default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v1.0.0" }
 pallet-preimage = { version = "4.0.0-dev", default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v1.0.0" }
@@ -106,6 +109,7 @@ std = [
 	"pallet-utility/std",
 	"pallet-sudo/std",
 	"pallet-multisig/std",
+	"pallet-proxy/std",
 	"pallet-scheduler/std",
 	"pallet-preimage/std",
 	"pallet-commitments/std",
@@ -139,6 +143,7 @@ runtime-benchmarks = [
 	"pallet-subtensor/runtime-benchmarks",
 	"pallet-collective/runtime-benchmarks",
 	"pallet-membership/runtime-benchmarks",
+	"pallet-proxy/runtime-benchmarks",
 	"pallet-registry/runtime-benchmarks",
 	"pallet-commitments/runtime-benchmarks",
 	"pallet-admin-utils/runtime-benchmarks",
@@ -159,6 +164,7 @@ try-runtime = [
 	"pallet-subtensor/try-runtime",
 	"pallet-collective/try-runtime",
 	"pallet-membership/try-runtime",
+	"pallet-proxy/try-runtime",
 	"pallet-multisig/try-runtime",
 	"pallet-scheduler/try-runtime",
 	"pallet-preimage/try-runtime",

runtime/src/lib.rs

@@ -6,7 +6,7 @@
 #[cfg(feature = "std")]
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
-use codec::Encode;
+use codec::{Decode, Encode, MaxEncodedLen};
 
 use pallet_commitments::CanCommit;
 use pallet_grandpa::{
@@ -17,6 +17,7 @@ use frame_support::pallet_prelude::{DispatchError, DispatchResult, Get};
 use frame_system::{EnsureNever, EnsureRoot, RawOrigin};
 
 use pallet_registry::CanRegisterIdentity;
+use scale_info::TypeInfo;
 use smallvec::smallvec;
 use sp_api::impl_runtime_apis;
 use sp_consensus_aura::sr25519::AuthorityId as AuraId;
@@ -40,8 +41,8 @@ use sp_version::RuntimeVersion;
 pub use frame_support::{
     construct_runtime, parameter_types,
     traits::{
-        ConstBool, ConstU128, ConstU32, ConstU64, ConstU8, KeyOwnerProofSystem, PrivilegeCmp,
-        Randomness, StorageInfo,
+        ConstBool, ConstU128, ConstU32, ConstU64, ConstU8, InstanceFilter, KeyOwnerProofSystem,
+        PrivilegeCmp, Randomness, StorageInfo,
     },
     weights::{
         constants::{
@@ -50,7 +51,7 @@ pub use frame_support::{
         IdentityFee, Weight, WeightToFeeCoefficient, WeightToFeeCoefficients,
         WeightToFeePolynomial,
     },
-    StorageValue,
+    RuntimeDebug, StorageValue,
 };
 pub use frame_system::Call as SystemCall;
 pub use pallet_balances::Call as BalancesCall;
@@ -87,6 +88,13 @@ type MemberCount = u32;
 
 pub type Nonce = u32;
 
+// Method used to calculate the fee of an extrinsic
+pub const fn deposit(items: u32, bytes: u32) -> Balance {
+    pub const ITEMS_FEE: Balance = 2_000 * 10_000;
+    pub const BYTES_FEE: Balance = 100 * 10_000;
+    items as Balance * ITEMS_FEE + bytes as Balance * BYTES_FEE
+}
+
 // Opaque types. These are used by the CLI to instantiate machinery that don't need to know
 // the specifics of the runtime. They can then be made to be agnostic over specific formats
 // of data like extrinsics, allowing for them to continue syncing the network through upgrades
@@ -472,10 +480,13 @@ impl pallet_sudo::Config for Runtime {
 }
 
 parameter_types! {
-    // One storage item; key size is 32; value is size 4+4+16+32 bytes = 56 bytes.
-    pub const DepositBase: Balance = (1) as Balance * 2_000 * 10_000 + (88 as Balance) * 100 * 10_000;
+    // According to multisig pallet, key and value size be computed as follows:
+    // value size is `4 + sizeof((BlockNumber, Balance, AccountId))` bytes
+    // key size is `32 + sizeof(AccountId)` bytes.
+    // For our case, One storage item; key size is 32+32=64 bytes; value is size 4+4+8+32 bytes = 48 bytes.
+    pub const DepositBase: Balance = deposit(1, 112);
     // Additional storage item size of 32 bytes.
-    pub const DepositFactor: Balance = (0) as Balance * 2_000 * 10_000 + (32 as Balance) * 100 * 10_000;
+    pub const DepositFactor: Balance = deposit(0, 32);
     pub const MaxSignatories: u32 = 100;
 }
 
@@ -489,6 +500,121 @@ impl pallet_multisig::Config for Runtime {
     type WeightInfo = pallet_multisig::weights::SubstrateWeight<Runtime>;
 }
 
+// Proxy Pallet config
+parameter_types! {
+    // One storage item; key size sizeof(AccountId) = 32, value sizeof(Balance) = 8; 40 total
+    pub const ProxyDepositBase: Balance = deposit(1, 40);
+    // Adding 32 bytes + sizeof(ProxyType) = 32 + 1
+    pub const ProxyDepositFactor: Balance = deposit(0, 33);
+    pub const MaxProxies: u32 = 20; // max num proxies per acct
+    pub const MaxPending: u32 = 15 * 5; // max blocks pending ~15min
+    // 16 bytes
+    pub const AnnouncementDepositBase: Balance =  deposit(1, 16);
+    // 68 bytes per announcement
+    pub const AnnouncementDepositFactor: Balance = deposit(0, 68);
+}
+
+#[derive(
+    Copy,
+    Clone,
+    Eq,
+    PartialEq,
+    Ord,
+    PartialOrd,
+    Encode,
+    Decode,
+    RuntimeDebug,
+    MaxEncodedLen,
+    TypeInfo,
+)]
+pub enum ProxyType {
+    Any,
+    Owner, // Subnet owner Calls
+    NonCritical,
+    NonTransfer,
+    Senate,
+    NonFungibile, // Nothing involving moving TAO
+    Triumvirate,
+    Governance, // Both above governance
+    Staking,
+    Registration,
+}
+impl Default for ProxyType {
+    fn default() -> Self {
+        Self::Any
+    }
+} // allow all Calls; required to be most permissive
+impl InstanceFilter<RuntimeCall> for ProxyType {
+    fn filter(&self, c: &RuntimeCall) -> bool {
+        match self {
+            ProxyType::Any => true,
+            ProxyType::NonTransfer => !matches!(c, RuntimeCall::Balances(..)),
+            ProxyType::NonFungibile => !matches!(
+                c,
+                RuntimeCall::Balances(..)
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::add_stake { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::remove_stake { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::burned_register { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::root_register { .. })
+            ),
+            ProxyType::Owner => matches!(c, RuntimeCall::AdminUtils(..)),
+            ProxyType::NonCritical => !matches!(
+                c,
+                RuntimeCall::SubtensorModule(pallet_subtensor::Call::dissolve_network { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::root_register { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::burned_register { .. })
+                    | RuntimeCall::Triumvirate(..)
+            ),
+            ProxyType::Triumvirate => matches!(
+                c,
+                RuntimeCall::Triumvirate(..) | RuntimeCall::TriumvirateMembers(..)
+            ),
+            ProxyType::Senate => matches!(c, RuntimeCall::SenateMembers(..)),
+            ProxyType::Governance => matches!(
+                c,
+                RuntimeCall::SenateMembers(..)
+                    | RuntimeCall::Triumvirate(..)
+                    | RuntimeCall::TriumvirateMembers(..)
+            ),
+            ProxyType::Staking => matches!(
+                c,
+                RuntimeCall::SubtensorModule(pallet_subtensor::Call::add_stake { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::remove_stake { .. })
+            ),
+            ProxyType::Registration => matches!(
+                c,
+                RuntimeCall::SubtensorModule(pallet_subtensor::Call::burned_register { .. })
+                    | RuntimeCall::SubtensorModule(pallet_subtensor::Call::register { .. })
+            ),
+        }
+    }
+    fn is_superset(&self, o: &Self) -> bool {
+        match (self, o) {
+            (x, y) if x == y => true,
+            (ProxyType::Any, _) => true,
+            (_, ProxyType::Any) => false,
+            (ProxyType::NonTransfer, _) => true,
+            (ProxyType::Governance, ProxyType::Triumvirate | ProxyType::Senate) => true,
+            _ => false,
+        }
+    }
+}
+
+impl pallet_proxy::Config for Runtime {
+    type RuntimeEvent = RuntimeEvent;
+    type RuntimeCall = RuntimeCall;
+    type Currency = Balances;
+    type ProxyType = ProxyType;
+    type ProxyDepositBase = ProxyDepositBase;
+    type ProxyDepositFactor = ProxyDepositFactor;
+    type MaxProxies = MaxProxies;
+    type WeightInfo = pallet_proxy::weights::SubstrateWeight<Runtime>;
+    type MaxPending = MaxPending;
+    type CallHasher = BlakeTwo256;
+    type AnnouncementDepositBase = AnnouncementDepositBase;
+    type AnnouncementDepositFactor = AnnouncementDepositFactor;
+}
+
 parameter_types! {
     pub MaximumSchedulerWeight: Weight = Perbill::from_percent(80) *
         BlockWeights::get().max_block;
@@ -540,8 +666,8 @@ impl pallet_scheduler::Config for Runtime {
 
 parameter_types! {
     pub const PreimageMaxSize: u32 = 4096 * 1024;
-    pub const PreimageBaseDeposit: Balance = (2) as Balance * 2_000 * 10_000_000 + (64 as Balance) * 100 * 1_000_000;
-    pub const PreimageByteDeposit: Balance = (0) as Balance * 2_000 * 10_000_000 + (1 as Balance) * 100 * 1_000_000;
+    pub const PreimageBaseDeposit: Balance = deposit(2, 64);
+    pub const PreimageByteDeposit: Balance = deposit(0, 1);
 }
 
 impl pallet_preimage::Config for Runtime {
@@ -991,6 +1117,7 @@ construct_runtime!(
         Multisig: pallet_multisig,
         Preimage: pallet_preimage,
         Scheduler: pallet_scheduler,
+        Proxy: pallet_proxy,
         Registry: pallet_registry,
         Commitments: pallet_commitments,
         AdminUtils: pallet_admin_utils